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6 Commits

Author SHA1 Message Date
Tim Kientzle
1d961ba22d Add #include "swift/Basic/Assertions.h" to a lot of source files 
Although I don't plan to bring over new assertions wholesale
into the current qualification branch, it's entirely possible
that various minor changes in main will use the new assertions;
having this basic support in the release branch will simplify that.
(This is why I'm adding the includes as a separate pass from
rewriting the individual assertions)
 2024-06-05 19:37:30 -07:00
Emil Pedersen
35e346fd8d Add support for op_tuple_fragment in SIL DIExpression and SIL SROA 
rdar://124034536
 2024-03-04 15:46:02 -08:00
Josh Soref
d767912be2 Spelling sil (#42471) 
* spelling: accessible

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Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
 2022-04-22 15:11:09 -07:00
Min-Yih Hsu
ece59c4718 (Stash) Add in-memory representation, parsing and printing 2021-09-10 14:17:38 -07:00
Min-Yih Hsu
9a8f2ed642 [SILOptimizer][DebugInfo] Preliminary support for DIExpression in SROA and Mem2Reg 
SROA and Mem2Reg now can leverage DIExpression -- op_fragment, more
specifically -- to generate correct debug info for optimized SIL. Some
important highlights:
 - The new swift::salvageDebugInfo, similar to llvm::salvageDebugInfo,
   tries to restore / transfer debug info from a deleted instruction.
   Currently I only implemented this for store instruction whose
   destination is an alloc_stack value.
 - Since we now have source-variable-specific SIL location inside a
   `debug_value` instruction (and its friends), this patch teaches
   SILCloner and SILInliner to remap the debug scope there in addition
   to debug scope of the instruction.
 - DCE now does not remove `debug_value` instruction whose associating
   with a function argument SSA value that is not used elsewhere. Since
   that SSA value will not disappear so we should keep the debug info.
 2021-08-05 17:27:45 -07:00
Min-Yih Hsu
377bdfaf12 [SIL][DebugInfo][Patch 1/2] Initial SIL DIExpression support 
Currently the debug info infrastructure inside SIL can only associate a
source variable with a single (simple) SSA value. Which is insufficient
to preserve (correct) debug info across SIL-level optimizations -- for
example, SROA that decompose or even eliminate aggregate-type obejcts.

By adding DIExpression into SIL, we are able to reconstruct the
connection between a source variable and its SSA value counterpart, even
across optimizations. This patch adds such support into in-memory
representation for SIL instructions and the SILParser/Printer. The
following patch will add changes for the IRGen part.
 2021-07-21 09:26:45 -07:00